Warning Messages - Wilo Stratos MAXO-D 32/0,5-12 Notice De Montage Et De Mise En Service

en
15.4

Warning messages

212
Faults, causes, remedies
Code Fault
Voltage analogue input
overloaded.
410
Additional information about causes and remedy:
The fault impairs the binary inputs. EXT. OFF is set. The pump is stationary.
Motor or control module
faulty.
420
Additional information about causes and remedy:
The pump cannot determine which of the two components is faulty. Contact
service.
Control module faulty.
421
Additional information about causes and remedy:
Contact service.
Motor errors
449
Additional information about causes and remedy:
Motor error stops the pump. The cause of the fault is checked within few
seconds.
Table 47: Error messages
Warning displayed:
▪ The status display is marked in yellow.
▪ Warning message, warning code (W...), cause and remedy are described as text.
Display of a warning in 7-segment LED display:
▪ The warning is displayed with a red coloured warning code (H...).
Fig. 93: Warning code display
Warnings indicate restricted pump function. The pump continues to operate in re-
stricted mode (emergency operation).
Depending on the cause of the warning, emergency operation leads to a restriction
of the control function and even reactivation of a fixed speed.
If the pump identifies as part of permanent monitoring that the cause of the warn-
ing no longer applies, the warning is revoked and operation resumes.
If a warning message is output, the display is permanently on and the green LED indic-
ator is off.
Code Fault
There is flow through
the pump in the oppos-
ite direction of flow.
550
Additional information about causes and remedy:
If flow passing through pump in the opposite direction is too strong, the mo-
tor can no longer start.
Undervoltage
551
Additional information about causes and remedy:
The pump is running. Undervoltage reduces the pump output.
If the voltage falls below 160 V, the reduced operation cannot be maintained.
Cause Remedy
Voltage analogue in- Check line and consumers
put short-circuited or connected to power supply
too heavily loaded. of analogue input for
short-circuit.
Motor or control Replace motor and/or con-
module faulty. trol module.
Control module Replace the control mod-
faulty. ule.
The pump is determ- The pump provides in-
ining the exact cause formation after few
of the fault. seconds
about the cause of fault
and suitable countermeas-
ures.
Cause Remedy
External influences Check power control of the
cause flow against pumps,
the direction of the install non-return valve if
pump's flow. needed.
Power supply has Check power supply.
dropped below 195 V.
WILO SE 2018-11